Skip to main content
Donate to the Python Software Foundation or Purchase a PyCharm License to Benefit the PSF! Donate Now

relate anything to anything

Project description

relate anything to anything. the image below is a screenshot of the example app and shows a blog post that has been “related” to 2 “Place” models and a “City” model:

http://media.charlesleifer.com/images/photos/genericm2m-tagging.png

check the documentation for more examples and an in-depth description of the app (or keep reading for the 30 second version).

what it does

the purpose of this project is to allow you to create database-level relationships between various objects using a consistent api.

example app

bundled with the source code is an example app which shows how generic-m2m can be used to create “tags” between models. it uses nathanborror’s basic apps with django-completion (shameless plug) to allow users to “autocomplete” various relationships between models, so if I’m a user and want to create a new blog post I can tag it with relationships to objects representing a city, a place, a funny photo of a cat, etc.

http://media.charlesleifer.com/images/photos/generic-m2m-rel-objs.png

quick overview

say you have a couple models:

class Food(models.Model):
    name = models.CharField(max_length=255)

    related = RelatedObjectsDescriptor()

    def __unicode__(self):
        return self.name


class Beverage(models.Model):
    name = models.CharField(max_length=255)

    related = RelatedObjectsDescriptor()

    def __unicode__(self):
        return self.name

Here’s a sample interactive interpreter session to show the basic API:

>>> pizza = Food.objects.create(name='pizza')
>>> pepperoni = Food.objects.create(name='pepperoni')
>>> beer = Beverage.objects.create(name='beer')
>>> soda = Beverage.objects.create(name='soda')

>>> pizza.related.connect(pepperoni)
<RelatedObject: pizza related to pepperoni ("")>

>>> pizza.related.connect(beer)
<RelatedObject: pizza related to beer ("")>

>>> pepperoni.related.related_to()
[<RelatedObject: pizza related to pepperoni ("")>]

>>> pizza.related.all()
[<RelatedObject: pizza related to beer ("")>, <RelatedObject: pizza related to pepperoni ("")>]

>>> pizza.related.all().generic_objects()
[<Beverage: beer>, <Food: pepperoni>]

>>> Food.related.all()
[<RelatedObject: pizza related to beer ("")>, <RelatedObject: pizza related to pepperoni ("")>]

Project details


Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Filename, size & hash SHA256 hash help File type Python version Upload date
django-generic-m2m-0.3.1.tar.gz (9.2 kB) Copy SHA256 hash SHA256 Source None

Supported by

Elastic Elastic Search Pingdom Pingdom Monitoring Google Google BigQuery Sentry Sentry Error logging AWS AWS Cloud computing DataDog DataDog Monitoring Fastly Fastly CDN SignalFx SignalFx Supporter DigiCert DigiCert EV certificate StatusPage StatusPage Status page